baber/WOPTO huggingface dataset:
Patent GB-685896-A (GB)
Title: Machine used in the making of piped buttonholes
IPC: D05B3/10
Filed: 1951-03-21
Abstract: 685,896. Sewing-machines. FISCHBEIN, D. March 21, 1951 [Oct. 16, 1950], No. 6749/51. Class 112. A two-needle machine for use in making piped buttonholes has a slitting blade between the needles actuated by means which can be put into and out of action at will during operation, so that the slit made can be shorter than the lines of stitching. A device for folding a tape to a #-section with all limbs double is attached to the presser-foot, which is modified to guide the tape so folded. Folding devices.-A flat tape 50, Fig. 4, to form the piping of a buttonhole, is fed into a flared part 51 of a folding device attached to the presser-foot of the sewing-machine, the wings of the device being shaped so that the tape is folded around a central #-section member 52 supported by a bridge 53. Presser-feet.-The foot 22, Fig. 6, is formed to guide the tape in its folded form so that the two needles 17 can stitch it through its " flanges " to the work over the position of the required buttonhole. Cutting.-A thin blade 16 carried by a vertically-reciprocating rod 24 works between the upstanding limbs of the tape to cut the base portion of the tape and the work beneath it to form the buttonhole slit. The rod 24 is actuated by a crank 30 on a rockshaft 28 which is oscillated by a cam 18 on the needle-bar or similar shaft 19 through a follower 20, pivotally connected to a crank 29 on the shaft 28 and spring-pressed against the cam, so that the blade 16 makes a cutting stroke for each descent of the needles; the width of the blade is such that successive strokes make a continuous slit in the work. In order that the operation of the knife may be suspended during the first and last parts of the sewing operation, so that the lines of stitching extend beyond both ends of the slit, a hand-operated spindle 43, mounted transversely on the arm of the machine, carries an arm 44 which can move in front of a boss 31 on the cam follower 20 to hold the latter in its rearmost position so that it cannot follow the cam 18, the blade 16 being then at the upper end of its travel; the arm 44 is held in its obstructing position by friction with the boss 31 under the pressure of the spring acting on the follower, against the pull of a weak return spring 45; the free position of the arm 44 is determined by a stop 48, on an arm on the spindle 43, engaging the machine arm.
Patent GB-1139805-A (GB)
Title: Improvements in or relating to the pressure-moulding of articles
Inventor: ATKIN RONALD
IPC: B29C43/00
Filed: 1965-02-17
Abstract: 1,139,805. Compression moulding. SAMCOSTRONG Ltd. 15 Feb., 1966 [17 Feb., 1965], No. 6796/65. Heading B5A. An article 1, e.g. a printing-plate, on a mould 2, is pressure moulded between heated platens 3, 4, and brought to a desired thickness by spacers 5 carried by the lower platen which is urged upwardly by a ram 6. Any excess pressure produced between the platens in this moulding position causes the spacers to deform the sides of the lower platen slightly and operate a microswitch which effects a reduction in the pressure and eliminates the deformation. In the embodiment of Figs. 5 and 6, (not shown), a U-shaped member (11) has its ends attached midway of the sides of the lower platen so that when the lower platen is slightly deformed by excess moulding pressure, a lever (14) pivoted thereon to a bolt (16) is urged against a fulcrum (15) causing the lever to pivot and operate a microswitch (17); a spring (18) engages the other end of the lever. The bolt (16) is adjustably connected to the lower platen by a bracket.
Patent GB-1422495-A (GB)
Title: Printing cylinder and process
IPC: B41F17/22
Filed: 1974-02-14
Abstract: 1422495 Coating apparatus VAN VLAANDEREN CONTAINER MACHINERY INC 14 Feb 1974 [16 Feb 1973] 6851/74 Heading B2L  A can 19 or other continuous surface is coated from a printing cylinder 16 with a pattern 15 of cells for coating material having a trailing side and a leading side 24, 25, in both of which the arrangement of cells varies circumferentially of the pattern so that when the can is coated by overlapping material from 'both sides a substantially uniform density coating results. A central portion 23 of uniform maximum density may also be provided. As shown in Fig. 5 a gravure cylinder 16 has a plurality of patterns 15 with uniformly arranged cells of different diameters and is supplied with coating material from a reservoir 17. Excess coating material is wiped off by a doctor blade 21 before transfer via a blanket roller 18 to the cams 19.
Patent GB-1102901-A (GB)
Title: Improvements in or relating to high performance motor vehicles
Inventor: HILL CLAUDE
IPC: B60K17/34
Filed: 1964-02-19
Abstract: 1,102,901. Motor vehicles. HARRY FERGUSON RESEARCH Ltd. 9 Feb., 1965 [19 Feb., 1964], No. 6853/64. Heading B7H. In a racing or sports car having a rearmounted engine and four-wheel drive, front and rear differentials 14, 15 drive the wheels 11 through half-shafts 22, 23, an inter-axle differential 16 adjacent the front differential 14 has a front output shaft 20 connected to the front differential and a rear output shaft 19 which extends along one side of the vehicle and is connected to the rear differential 15, and a drive shaft 19 between the engine 12 and the inter-axle differential 16 extends along the same side of the vehicle as the rear output shaft 21. The engine 12 drives the shaft 19 through a clutch 18 and reduction gearing 17. The interaxle differential 16 may include means for limiting the speed difference between the output shafts 20, 21, and the drive shaft 19 may drive the inter-axle differential 16 through change-speed gearing housed within the differential easing. Fuel tanks 24 are disposed on either side of the driver, and a supercharger may be mounted in a space 13 behind the engine 12.
Patent GB-925774-A (GB)
Title: Oxygen demand regulator
Inventor: ROBERTSON DAVID MILLAR
IPC: A62B9/02
Filed: 1961-02-24
Abstract: 925,774. Respiratory appliances. BRITISH OXYGEN CO. Ltd. Feb. 23, 1962 [Feb. 24, 1961], No. 6856/61. Class 81 (2). [Also in Group XXIX] An oxygen demand regulator, for high altitude use, has a diaphragm-controlled valve 13 for controlling the passage of oxygen from an inlet 14 to a nozzle device 18 where it issues into a mixing chamber 20, entraining ambient air through a flap valve 24 so that the mixture passes to an outlet 21. Increase in altitude causes an aneroid capsule 25 to expand and progressively close a valve 32 and thereby reduce the proportion of air in the mixture until, at a predetermined point, the initial tension in a spring 30 is released and a valve 20<SP>x</SP> is thereby allowed to open and pass a considerably greater flow of oxygen. Subsequently, the valve 32 is closed completely. For emergency use the stem 27, on which the fixed end of the capsule 25 is mounted, is associated with a cam device 36 so that, by moving a handle 35, the valve 20<SP>x</SP> can be opened immediately.
Patent GB-828069-A (GB)
Title: Improvements in photographic silver halide emulsions containing optical sensitizing dyes
IPC: G03C1/28
Filed: 1956-03-07
Abstract: 828,069. Sensitized photographic emulsions. KODAK Ltd. March 7, 1956 [March 8, 1955], No. 7103/56. Drawings to Specification. Class 98(2) The sensitivity of a washed photographic silver chloride or chorobromide emulsion containing a sensitizing dye of the general formula:- wherein R and R, are alkyl or substituted alkyl groups, X is an anion, Z and Z 1  complete 5-membered heterocyclic nuclei and R 2  is an aryl, substituted aryl, unsubstituted 2-pyrryl or thienyl group or the group:- where R 5  is H, alkyl or aryl, R 6  is H, alkyl, cycloalkyl or aryl and Z 4  completes a 3-indolyl or benz-3-indolyl nucleus or when R, and R 6  are not both H, a 3-pyrryl group, or Z 4  together with R, and R. complete a pyrrocolyl nucleus, is improved by incorporating therein a water-soluble salt of cadmium or zinc in amount from 5 to 35g. per mole of silver halide. The emulsions are further improved by including therein also a dye of the general formula:- wherein R 3  and R, are alkyl groups, Q completes an indanedione nucleus or a 5- or 6-membered heterocyclic nucleus, Z 2  completes a 5- or 6- membered heterocyclic nucleus and Z 3  completes a nucleus of the naphthothiazole or naphthoselenazole series. The cadmium or zinc salt may be the chloride, bromide, sulphate, nitrate, iodide or acetate. In the above formulae, R and R 1  may be methyl, ethyl, n-propyl, carboxymethyl or benzyl, R 2  may be phenyl, tolyl, 2:5-xylyl, chlorophenyl, naphthyl, or 9-phenanthryl, R, or R 6  may be methyl, ethyl, n-propyl, n-amyl, n-heptyl, n-dodecyl, phenyl or tolyl, or R 6  may be cyclohexyl, R, and R 4  may be methyl, ethyl, n-propyl or n-butyl, Z and Z 1  may complete nuclei of the thiazole, benzthiazole, naphthothiazole, benzselenazole, naphthoselenazole, oxazole, benzoxazole, naphthoxazole or benzimidazole series, Z 2  may complete nuclei of the benzthiazole, naphthothiazole, benzselenazole, naphthoselenazole or naphthoxazole series and Q may complete a barbituric acid, thiobarbituric acid or isoxazolone nucleus. The cadmium and zinc salts are said also to stabilize the emulsions against fog. Specifications 412,309, 533,425, 538,857, 740,770, 751, 318, 756,226, 774,780, 783,329 and 783,596 are referred to.
Patent GB-181099-A (GB)
Title: Improvements in or relating to trimming machines for use in the manufacture of boots or shoes
IPC: A43D63/00
Filed: 1921-03-04
Abstract: 181,099. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). March 4, 1921. Trimming.-In a machine, for trimming soleedges, of the type described in Specification 15182/14, wherein a trimming-knife makes a succession of cuts and then a chopping-knife detaches the shaving so formed, the latter knife is constantly driven, but is normally removed from its cutting path. This knife is positively driven and may be shifted into work-engaging position manually or automatically. Fig. 3 shows a form where the shifting is performed by a treadle-operated rod 260. The trimming-knife 236 is mounted on an oscillating head 234. Chopping-knives 282 are each mounted on a lever 278 pivoted to a slide engaging a vertical dovetail on the head 234 and suspended by a link 270 raised and lowered by the treadle. The upper ends of the levers 278 are restrained by rolls engaging slots 290 in a fixed member. The arrangement is that the knives 282 oscillate substantially radiallv to the centre of oscillation of the head 234 and therefore substantially perpendicularly to the path of the trimming-knife. Fig. 4 shows mechanism for causing the chopping-knives to be automatically lowered into work-engaging position when a member 112 engages the heel breast and automatically lifted on removal of the work. The member 112 is operatively connected with a pair of longitudinally sliding rods 74, 76 connected by a lever 78 so that when one is moved to the right the other is moved to the left. The right-hand ends of these rods are adapted to engage the tail of a pawl which when free connects a constantly rotating gear-wheel 58 with a shaft 64. This shaft carries an eccentric 84 which rotates half a revolution for each reversal of the rods 74, 76 and lifts or lowers the chopping-knives, lowering them to work-engaging position when the heel breast engages the member 112 and raising them again when the shoe is removed.
Patent GB-852247-A (GB)
Title: Improvements in or relating to processes for the polymerization of olefines
IPC: C08F10/00
Filed: 1957-03-04
Abstract: Ethylene is polymerised using as catalyst a halide or alkyl halide of a metal of Group II to VI of the Periodic system together with a hydrocarbon having at least a pair of conjugated double bonds or at least one double bond activated by adjacent aromatic rings and containing at least three atoms of an alkali metal adsorbed per molecule of hydrocarbon.  The halide or alkyl halide may be a mixture of a Group II and Group III metal with a Group IV, V and VI metal. Titanium, zirconium, molybdenum and tungsten tetrachlorides, N-butyl magnesium bromide and magnesium, nickel, aluminium and cerium chlorides are specified.  Listed hydrocarbons are anthracene, phenanthrene, stilbene, fulvene, bisdiphenyl-ethylene, 1, 2-benzanthrene, chrysene, acenaphthylene, dibenzanthrene and tetraphenylquinodimethane.  The polymerization may take place in a solvent, e.g. xylene.  Specifications 840,814 and 851,723 are referred to.ALSO:A catalyst for the polymerization of ethylene, comprises a mixture of a halide or alkyl halide of a metal of Group II to VI of the Periodic system with a hydrocarbon having at least a pair of conjugated double bonds or at least one double bond actuated by adjacent aromatic rings and containing at least three atoms of an alkali metal absorbed per molecule of hydrocarbon.  The halide or alkyl halide may be a mixture of a Group II or III metal with a Group IV-VI metal compound.  Titanium, zirconium, molybdenum and tungsten tetrachloride, n-butyl magnesium bromide, and magnesium, nickel, aluminium, and cerium chlorides are specified.  Listed hydrocarbons are anthracene, phenanthrene, stilbene, bulvene, bisdiphenyl - ethylene, 1,2-benzanthrene, chrysene, acenapththylene, dibenzanthrene, and tetraphenylquinodimethane. Specifications 840,814 and 851,723 are referred to.
Patent GB-1421985-A (GB)
Title: Coating process
IPC: B05D1/36
Filed: 1973-02-14
Abstract: 1421985 Coated cylindrical objects LOCTITE CORP 14 Feb 1973 [14 Feb 1972] 7189/ 73 Heading B2E [Also in Division F2] A process for coating cylindrical objects which comprises applying a spreadable coating composition containing a first reactant to at least a portion of the surface of the cylindrical objects and rotating each object to obtain at least a band of coating composition round it and subsequently contacting that portion of the surface coated with the coating composition with a congealing agent containing or consisting of a second reactant capable of reacting with the first reactant to congeal at least the surface of the coating composition. The cylindrical object is preferably a threaded fastener such as a stud, bolt or wood screw, but may be a threaded pipe connector or rivet. The coating compositions may be a solution or dispersion of a thermoplastic polymer having "active hydrogen atoms" such as ponlyvinylalcohol, polyvinyl acetal (e.g. butryal or formal) and polyvinyl esters (e.g. acetate), the polymer serving as "first reactant". The composition may in addition contain encapsulated anaerobic adhesive or sealant such as epoxy and a hardener. The second reactant, applied preferably as a solution, may consist of (i) inorganic polyfunctional acids e.g. borax or silicic acid, (ii) hydrogen bonding compounds e.g. cotton-fast dyes such as congo red; polyhydroxy aromatic compounds such as resorcinol; salicyl analides; or phenol acids, e.g. gallic acid or dihydroxy benzoic acid, (iii) cross-linking agents such as aldehydes or methylolated amides, (iv) metal hydroxides such as copper hydroxide, titanium hydroxide or tin hydroxide, or precursors for them, such as supous chloride or tetraisopropyltitanium or (v) strongly complexing salts of transition metals such as cupric ammonium chloride. The cylindrical objects can be coated by dipping, padding or spraying. Also mentioned are aluminium powder (colouring agent) and graphite (lubricant) incorporated in the coating compositions.
Patent GB-814044-A (GB)
Title: Flashover elimination in electrostatic precipitators
IPC: B03C3/66
Filed: 1957-03-05
Abstract: 814,044. Control systems for electrostatic precipitators. APRA PRECIPITATOR CORPORATION. March 5, 1957 [April 30, 1956], No. 7231/57. Class 38 (4). Flashovers in an electrostatic precipitator apparatus are minimized by an arrangement whereby the high voltage supply to the precipitator electrodes is periodically removed. The high voltage electrodes of an electrostatic precipitator 12 are supplied from a power supply 40 by way of thermionic valves 36 each having a control electrode 38 fed with a normal negative bias voltage from a supply line 42 and a superimposed pulse supplied from an impulse producing element such that when the electrode 38 receives an impulse the valve 36 is extinguished and the supply to the electrode removed. During the time that the supply is removed the normal ionisation may be sustained by the charge existing in the electrostatic capacity of the electrodes and the supply cables. The impulse producing element may be a saturable transformer 44 fed from a 60-cycle per second supply which produces a series of pulses having a duration of about one millisecond and an amplitude of a few hundred volts, the pulses occurring 60 times per second. Alternatively the impulse producing element may be an electronic device.
Patent GB-591967-A (GB)
Title: Improvements relating to rust-proofing compositions
IPC: C23C22/08
Filed: 1945-03-22
Abstract: A rust-proofing composition comprises a concentrated aqueous solution of phosphoric acid containing metallic iron or an iron compound other than iron sulphide, and having added thereto hydrogen sulphide from an external source.  The hydrogen sulphide may be bubbled through the solution and there may be sufficient present to maintain all the iron in the ferrous state. Specifications 419,487 and 447,176 are referred to.ALSO:A rust-proofing composition comprises a concentrated phosphoric acid aqueous solution containing metallic iron or an iron compound other than iron sulphide, and having added thereto hydrogen sulphide from an external source.  The hydrogen sulphide may be bubbled through the solution and there may be sufficient present to maintain all the iron in a ferrous state. Specifications 419,487 and 447,176 are referred to.
Patent GB-1329212-A (GB)
Title: Winch apparatus
IPC: B63B27/30
Filed: 1971-04-19
Abstract: 1329212 Winches BYRON JACKSON Inc 19 April 1971 [16 March 1970] 7339/73 Divided out of 1329211 Heading B8B The subject matter of this Specification is identical with that described in Specification 1,329,211, but the claims are concerned with the driving and locking of the hoist drum relative to the shaft on which it is mounted.
Patent GB-1350313-A (GB)
Title: Applicator mechanism for enamel powders
IPC: B05C19/04
Filed: 1972-02-17
Abstract: 1350313 Enamelling apparatus FERRO CORP 17 Feb 1972 [10 March 1971] 7392/72 Heading C1M An apparatus for applying enamel powder to a heated hollow article, e.g. a metal bath, lavatory or sink, comprises a cradle 12 on which the article 10 is mounted, which cradle is supported on a beam 18 in turn mounted on a pair of journals 17 so as to be tiltable about a vertical plane through a rotatable column 20, and a sieve 46 for distributing powder into the interior of the article carried by a support frame 36 mounted on the cradle 12. The support frame carries swingable arms 43 on which the sieve 46 is mounted so that the sieve can be lowered into the interior of the article 10. An arm 60 having a latching mechanism 66 at its free end is mounted adjacent the sieve so as to latch the sieve in its lowered position. The sieve has a vibrator 56 mounted thereon for shaking the sieve to distribute the powder on to the article. The sieve may have a polygonal or circular cross-section and may contain baffle members dividing it into a plurality of chambers.
Patent GB-349660-A (GB)
IPC: A43B13/39
Filed: 1930-03-06
Abstract: In the making of hot vulcanized foot-wear, the sole and heel is pressed in a mould, which may form part of the vulcanizing mould, and is then united to the upper carried on a mating mould, the moulds are clamped, fluid pressure is admitted to the interior &c., and the article is vulcanized.
Patent GB-322970-A (GB)
Title: Imparting a stone colour to leather polish
IPC: C09G1/00
Filed: 1929-03-07
Abstract: 322,970. Dennington, S. H. March 7, 1929. Polishing-compositions.-A stone colour is imparted to leather polishes by adding a mixture of lithopone, barium sulphate, iron oxide and ivory black to animal, vegetable or mineral oil or fats, vegetable or mineral waxes, or mixtures thereof, in a liquid or semi-liquid state.
Patent GB-561236-A (GB)
Title: Improvements in or relating to friction brake devices
IPC: B66D5/00
Filed: 1942-06-02
Abstract: 561,236. Brakes. A.C.E. MACHINERY. Ltd., and EVANS, P. N. June 2, 1942, No. 7472. [Class 103 (i)] A brake drum is arranged to be moved to engage the inner surface thereof with a spring- loaded brake shoe which is permitted limited tangential movement to provide a wedging action whereby the drum is rapidly stopped. The movement of the drum may also disengage it from a driving pinion. The brake drum a is freely mounted upon a shaft b carried by eccentric bearings s in a fixed support h. The brake shoe c is carried by an arm d mounted on a pivot f extending between side parts q of a bracket g fixed to the support h. The shoe is urged towards the drum by a spring e and is normally held in an adjustable position spaced from the drum by a screw l. By a part rotation of the bearings s the drum engages the shoe which is then carried along the pivot to an extent determined by clearance between the shoe and the adjacent side part q to produce a wedging action. The drum has a driving connection with the apparatus under control and the eccentric bearings s may be turned in either direction from the position in which the brake is applied to engage the drum with one or the other of two oppositely rotating friction driving pinions as described in Specification 561,235, [Group XXIV], so as to drive the drum in either direction.
Patent GB-334561-A (GB)
Title: Improvements in or relating to means for stowing and launching ships' life boats
IPC: B63B23/04
Filed: 1929-03-07
Abstract: 334,561. Malet, H. R. March 7, 1929. Davits comprise a post 15 mounted on a foot step 16 and carrying a collar 20 in which is mounted a rotatable pillar 18 which supports a cantilever 21 constituting the davit proper and having on its upper surface rails 23 which, when the davit is moved by screw gear to its outboard position, align with similar rails on the head of the post 15. Wheeled trolleys 12<1> connected by a beam 12 run on the rails 23 and are moved along the rails by a chain 38 passing over inboard and outboard pulleys 39, 40 the former being operated by chain gear 43. The boat falls are led from inboard over the trolley to the lower fall block 9. In the event of the ship having a list, the davit structure, is tilted outboard, by screw gear comprising a block working on the vertically-mounted screw 28 and having pins 27 which work in a slot in the foot-step 16, the screw either being operated by power applied to the bevel wheel 29 or by the hand capstan 32. In an alternative construction, the pin or slot gear is replaced by a toothed sector on the footstool. In a further modification, the luffing of the davit is controlled by rope gear. The davit is elastically supported by the spring buffer 44 and the boats are mounted on wheeled trolley chocks &c.